Apple Photos Migration failed, cannot be re-migrated

[Henrik Helmers]

I migrated my Apple Photos library, but the migration failed, leaving me a couple of hundred images short (despite the count in Lightroom CC being greater than in Photos). I deleted the result of the failed migration—after all, the result is useless, especially when the failed photos aren't listed (or grouped in Apple Photos).

After doing a bit of cleanup in Apple Photos I decided to give it another try. But now it does not want to migrate again, as it is already migrated. That's not helpful. How can I get past this error?

[Thierry Linder]

Hi Henrik, yesterday I met the same problem. During the migration process, there was an error code and no pictures were migrated.

When I try to repeat the migration, this is no longer possible because the tool tells me that I can do it only once.

I agree to do it once, but this time works!

How to solve this situation and reset this counter?

[selondon]

It may be best to post here also: Lightroom CC for Desktop | Photoshop Family Customer Community

Lightroom engineers monitor that forum and may be able to assist.

[Thierry Linder]

Thanks for your reply, I will try